Unit 3 Conservation Topic Talk-2025-2026学年高中英语词义辨析及同义替换精讲选择性必修第一册（北师大版）

高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 环保主题 【Unit3】Conservation Topic Talk 词义辨析及同义替换精讲 本单元核心词汇 一、全部单元单词 conservation/,kDns3'ven/n.保教育意义的：知识性强的 horn /ho:n/n.(件、羊等头上 护 threat /Oret/n.威胁：（灾难等坏的）角 destroy/d'sto/t.破坏：毁掉 事)发生的可能 extinct/k'stkt/adj.灭绝的，绝 plastic/'plaestrk/adj.塑料制的 switch/swt/vi.&t.转换，改种的 *mining/'mam/n.采矿y业 变 incredibly /in'kredabli/adv. item/'atam/n.一项，一条 have a role起某种作用 常地，极端地 recycle/ri:'sakl/v.&t.再利do one's part尽自己的职责 argent/,'3:d39nt/adj.紧急的，急 用，回收利用 *rhino/'rama/n.犀牛 迫的 unrecyclable/,nri:'saiklab/adj.illegally'li:geli/adv.非法地 不可回收的 违法地 informative/m'fo:mativ/adj.有hunt /hAnt/vi.&vt.猎取，猎杀 词义辨析及同义替换 1.conservation/kDns3'veifn/n.保护 词义辨析： conservation:侧重指对自然环境、资源等的保护，强调合理利用以维持生态平衡，名词。 protection:含义更广，可指对人、物或抽象事物的保护，如人身保护、知识产权保护等。 同义替换： protection,preservation 例句： We should pay more attention to the conservation of endangered species. 真题链接：（北师大版高中选修1同步练习） The government has taken measures for the of the rainforest. A.destruction B.conservation C.development (答案：B) 2.destroy/dr'stroL/t.破坏；毁掉 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 词义辨析： destroy:强调彻底破坏，使其失去功能或价值，语气较强，常指无法修复的损坏。 damage: 侧重指部分损坏，可能仍有修复的可能，程度较destroy轻。 同义替换： ruin,damage 例句： The fire destroyed the entire building in just two hours 真题链接：（北师大版高中选修1单元测试） The storm many houses along the coast last night. A.protected B.destroyed C.built(答案：B) 3.recycle/ri:'sakl/v.&t.再利用，回收利用 词义辨析： recycle:指将废材料经过处理后重新制成新的产品，实现资源再利用。 reus:强调多次使用同一物品，不改变其原有形态和用途。 同义替换： reprocess,reuse 例句： We should recycle plastic bottles to reduce pollution. 真题链接：（北师大版高中选修1环保主题阅读题） It's important to paper and glass to save natural resources. A.waste B.recycle C.throw (答案：B) 4.hreat/ret/n.威胁；（灾难等坏事）发生的可能 词义辨析： hreat:指对人或事物构成的威胁，可指抽象的危险或具体的威胁行为，名词。 danger:侧重指可能发生的危险或风险，语气较threat更普遍。 同义替换： menace,risk 例句： The illegal hunting poses a serious threat to the survival of rhinos. 真题链接：（北师大版高中选修1阅读理解题） What is the biggest to the environment according to the passage? A.threat B.protection C.benefit(答案：A) 5.switch/swIt//vi..&t.转换，改变 词义辨析： switch:侧重指从一种状态、方式或事物转换到另一种，常与between,to等介词搭配。 change:含义广泛，可指任何形式的改变，包括性质、状态、数量等。 2 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 同义替换： change,shift 例句： We should switch to renewable energy to reduce carbon emissions. 真题链接：（北师大版高中选修1语法填空) Please off the lights when you leave the room A.switch B.open C.take (答案：A) 6.hunt /hAnt/vi.&t.猎取，猎杀 词义辨析： hunt:指为获取食物或皮毛等而捕猎动物，也可指搜寻某人或某物。 chase:侧重指追逐、追赶，不一定以捕猎为目的。 同义替换： hunt for,pursue 例句： Some people still hunt rhinos illegally for their horns. 真题链接：（北师大版高中选修1完形填空） Poachers often animals in the national park at night. A.protect B.hunt C.feed (答案：B) 7.extinct/k'stkt/adj.灭绝的，绝种的 词义辨析： extinct:指物种因无法适应环境变化等原因而彻底消失，不再存在。 endangered:指物种面临灭绝的危险，但尚未完全消失。 同义替换： vanished,wiped out 例句： The dodo bird has been extinct for centuries. 真题链接：（北师大版高中选修1单元测试） Many species are becoming due to human activities A.extinct B.alive C.healthy （答案：A) 8.Irgent/'3:d3ant/adj.紧急的，急迫的 词义辨析： urgent::强调事情需要立即处理，刻不容缓，修饰任务、问题等。 emergent:侧重指突然发生的、紧急的情况，常与紧急事件'搭配。 同义替换： pressing,critical 3 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 例句： It is urgent to take action to protect the environment. 真题链接：（北师大版高中选修1书面表达） We received an message about the environmental pollution A.urgent B.slow C.unimportant (答案：A) 9.informative/n'fo:matv/adj.有教育意义的；知识性强的 词义辨析： informative:侧重指内容丰富、能提供有用信息，使人增长知识。 educational: 强调具有教育意义，有助于学习和成长，范围更广。 同义替换： instructive,educational 例句： This documentary is very informative about wildlife conservation. 真题链接：（北师大版高中选修1阅读理解题） The article is and helps us learn a lot about recycling. A.boring B.informative C.difficult(答案：B) l0.llegal /'li:gadj.非法的，违法的 词义辨析： illegal::指违反法律规定的行为，形容词。 unlawful:与illegal含义相近，但更正式，强调不符合法律原则。 同义替换： unlawful,illicit 例句： Illegal hunting is punishable by law. 真题链接：（北师大版高中选修1语法填空） It is to cut down trees in the protected area. A.legal B.illegal C.easy (答案：B) 11.do one's part尽自己的职责 词义辨析： do one'spat:强调每个人在集体中应承担的责任和义务，尽自己一份力。 play a role:侧重在某件事情中发挥作用，扮演角色。 同义替换： do one's duty,play one's part 例句： Everyone should do their part to protect the environment. 4 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 真题链接：（北师大版高中选修1补全对话） -What can we do to help?-We should in reducing waste A.do our part B.give up C.take a break (答案：A) l2.have a role起某种作用 词义辨析： have a role:指在某个过程或系统中起到一定的作用，常与in搭配。 play a par't:与have a role含义相近，更口语化，强调参与并发挥作用。 同义替换： play a role,play a part 例句： Plants have an important role in maintaining ecological balance. 真题链接：（北师大版高中选修1阅读理解题) What role do bees in the ecosystem according to the text? A.have B.make C.take(答案：A) 综合演练 综合练习 一、 单项选择 1.The government has taken strict measures for the of wild animals in this area. A.conservation B.destruction C.development 2.The earthquake hundreds of buildings,leaving many people homeless. A.protected B.destroyed C.built 3.It's necessary to plastic bags to reduce white pollution. A.waste B.recycle C.throw 4.Air pollution is a serious to people's health in big cities A.threat B.protection 5 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 C.benefit 5.Please the lights off before leaving the classroom to save electricity. A.switch B.open C.take 6.Some poachers still elephants for their ivory despite the law. A.protect B.hunt C.feed 7.The passenger pigeon has been for over a century due to overhunting. A.extinct B.alive C.healthy 8.We received an notice about the sudden oil spill in the ocean. A.urgent B.slow C.unimportant 二、根据句意及首字母提示填空 1.The c of water resources is crucial for sustainable development. 2.Illegal logging can d the natural habitats of many species. 3.R paper can save a large number of trees every year. 4.Climate change poses a great t to coastal cities around the world. 5.Don't forget to s off the TV when nobody is watching it. 6.It is i to sell products made from endangered animals. 三、用所给单词的适当形式填空 1.Everyone should do their part in the (conserve)of natural ecosystems. 2.The storm (destroy)the old bridge,so we need to build a new one. 3.My mother always_ (recycle)glass bottles to make useful crafts 4.The (threaten)of losing their homes makes the animals very anxious. 6 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 5.We need to take (urgency)action to stop the spread of the disease. 6.The documentary about pandas is very_ (inform)and popular among students. 四、完成句子（每空一词) 1.每个人都应该尽自己的职责保护环境。 Everyone should in protecting the environment 2.为了减少碳排放，我们应该转向清洁能源。 To reduce carbon emissions,we should clean energy. 3.过度捕捞己经使许多海洋物种濒临灭绝。 Overfishing has pushed many marine species 4.这篇文章很有知识性，帮助我们了解了很多关于垃圾分类的知识。 The article is very and helps us learn a lot about garbage sorting. 五、语篇填空 阅读下面短文，在空白处填入一个适当的单词或用括号内单词的正确形式填空，使短文通顺、连 贯。 Wildlife conservation is becoming increasingly important as human activities continue to affect na- ture.Many species are facing the risk of being(extinct)due to habitat loss and illegal hunting For example,some people(hunt)rhinos for their horns,which are mistakenly believed to have medical value.This illegal activity poses a serious(threaten)to the survival of rhinos. To solve this problem,governments have taken(urge)measures.They have set up protected areas and made laws to stop illegal hunting.Additionally,it is important for individuals to (do)their part.We can recycle more to reduce waste,switch to energy-saving products,and spread (inform)knowledge about wildlife protection.Only by working together can we ensure a better future for all living beings. 参考答案 I.单项选择 1.A2B 3B4.A5.A6B7A8.A Ⅱ.根据句意及首字母提示填空 1.conservation 2.destroy 3.Recycle 4.threat 5.switch 6.illegal 高中选修1北师大版 【环保主题】 词义辨析及同义替换精讲 ⅡI用所给单词的适当形式填空 1.conservation 2.destroyed 3.recycles 4.threat 5.urgent 6.informative V.完成句子 1.do their part 2.switch to 3.into extinction 4.informative V.语篇填空 1.extinct 2.hunt 3.threat 4.urgent 5.do 6.informative 8